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pythonnet/src/runtime/pylong.cs at master · sdpython/pythonnet · GitHub
This repository was archived by the owner on Jul 22, 2023. It is now read-only.
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using
System
;
namespace
Python
.
Runtime
{
/// <summary>
/// Represents a Python long int object. See the documentation at
/// PY2: https://docs.python.org/2/c-api/long.html
/// PY3: https://docs.python.org/3/c-api/long.html
/// for details.
/// </summary>
public
class
PyLong
:
PyNumber
{
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from an existing object reference. Note
/// that the instance assumes ownership of the object reference.
/// The object reference is not checked for type-correctness.
/// </remarks>
public
PyLong
(
IntPtr
ptr
)
:
base
(
ptr
)
{
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Copy constructor - obtain a PyLong from a generic PyObject. An
/// ArgumentException will be thrown if the given object is not a
/// Python long object.
/// </remarks>
public
PyLong
(
PyObject
o
)
:
base
(
FromObject
(
o
)
)
{
}
private
static
IntPtr
FromObject
(
PyObject
o
)
{
if
(
o
==
null
||
!
IsLongType
(
o
)
)
{
throw
new
ArgumentException
(
"object is not a long"
)
;
}
Runtime
.
XIncref
(
o
.
obj
)
;
return
o
.
obj
;
}
private
static
IntPtr
FromInt
(
int
value
)
{
IntPtr
val
=
Runtime
.
PyLong_FromLong
(
value
)
;
PythonException
.
ThrowIfIsNull
(
val
)
;
return
val
;
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from an int32 value.
/// </remarks>
public
PyLong
(
int
value
)
:
base
(
FromInt
(
value
)
)
{
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from a uint32 value.
/// </remarks>
public
PyLong
(
uint
value
)
:
base
(
FromInt
(
(
int
)
value
)
)
{
}
internal
static
IntPtr
FromLong
(
long
value
)
{
IntPtr
val
=
Runtime
.
PyLong_FromLongLong
(
value
)
;
PythonException
.
ThrowIfIsNull
(
val
)
;
return
val
;
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from an int64 value.
/// </remarks>
public
PyLong
(
long
value
)
:
base
(
FromLong
(
value
)
)
{
}
private
static
IntPtr
FromULong
(
ulong
value
)
{
IntPtr
val
=
Runtime
.
PyLong_FromUnsignedLongLong
(
value
)
;
PythonException
.
ThrowIfIsNull
(
val
)
;
return
val
;
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from a uint64 value.
/// </remarks>
public
PyLong
(
ulong
value
)
:
base
(
FromULong
(
value
)
)
{
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from an int16 value.
/// </remarks>
public
PyLong
(
short
value
)
:
base
(
FromInt
(
(
int
)
value
)
)
{
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from an uint16 value.
/// </remarks>
public
PyLong
(
ushort
value
)
:
base
(
FromInt
(
(
int
)
value
)
)
{
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from a byte value.
/// </remarks>
public
PyLong
(
byte
value
)
:
base
(
FromInt
(
(
int
)
value
)
)
{
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from an sbyte value.
/// </remarks>
public
PyLong
(
sbyte
value
)
:
base
(
FromInt
(
(
int
)
value
)
)
{
}
private
static
IntPtr
FromDouble
(
double
value
)
{
IntPtr
val
=
Runtime
.
PyLong_FromDouble
(
value
)
;
PythonException
.
ThrowIfIsNull
(
val
)
;
return
val
;
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from an double value.
/// </remarks>
public
PyLong
(
double
value
)
:
base
(
FromDouble
(
value
)
)
{
}
private
static
IntPtr
FromString
(
string
value
)
{
IntPtr
val
=
Runtime
.
PyLong_FromString
(
value
,
IntPtr
.
Zero
,
0
)
;
PythonException
.
ThrowIfIsNull
(
val
)
;
return
val
;
}
/// <summary>
/// PyLong Constructor
/// </summary>
/// <remarks>
/// Creates a new PyLong from a string value.
/// </remarks>
public
PyLong
(
string
value
)
:
base
(
FromString
(
value
)
)
{
}
/// <summary>
/// IsLongType Method
/// </summary>
/// <remarks>
/// Returns true if the given object is a Python long.
/// </remarks>
public
static
bool
IsLongType
(
PyObject
value
)
{
return
Runtime
.
PyLong_Check
(
value
.
obj
)
;
}
/// <summary>
/// AsLong Method
/// </summary>
/// <remarks>
/// Convert a Python object to a Python long if possible, raising
/// a PythonException if the conversion is not possible. This is
/// equivalent to the Python expression "long(object)".
/// </remarks>
public
static
PyLong
AsLong
(
PyObject
value
)
{
IntPtr
op
=
Runtime
.
PyNumber_Long
(
value
.
obj
)
;
PythonException
.
ThrowIfIsNull
(
op
)
;
return
new
PyLong
(
op
)
;
}
/// <summary>
/// ToInt16 Method
/// </summary>
/// <remarks>
/// Return the value of the Python long object as an int16.
/// </remarks>
public
short
ToInt16
(
)
{
return
Convert
.
ToInt16
(
ToInt64
(
)
)
;
}
/// <summary>
/// ToInt32 Method
/// </summary>
/// <remarks>
/// Return the value of the Python long object as an int32.
/// </remarks>
public
int
ToInt32
(
)
{
return
Convert
.
ToInt32
(
ToInt64
(
)
)
;
}
/// <summary>
/// ToInt64 Method
/// </summary>
/// <remarks>
/// Return the value of the Python long object as an int64.
/// </remarks>
public
long
ToInt64
(
)
{
return
Runtime
.
PyLong_AsLongLong
(
obj
)
;
}
}
}
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